Grinding-mill



' (No Model.)

H. H. GOLES.

. G'RINDING MILL.. No. 437,144.

Patented Sept. 23, 1890.

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sleeve of said devices.

UNITED STATESl PATENT OFFICE.

HENRI H. GOLES, OE PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE GOLES MANUFACTURING COMPANY, OF PENNSYLVANIA.

GRINDlNe-M'ILL.

SPECIFICATION lforming part of Letters Patent No. 437,144, dated September 23, 1890. Application filed December 17, 1888. Serial No. 293,818. (No mddel.)

To all whom, it may concern:

Be it known that I, HENRI H. GOLES, a citizen of the United States, residing in the cityA and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Grinding-Mills, which improvement is fully set forth in the following speciiication and accompanying drawings.

My invention relates to improvements in grinding-mills; and it consists in the combination of parts herein set forth and claimed.

Figure 1 represents a partial side elevation and partial vertical section of a grinding-mill embodying my invention. Fig. 2 represents a vertical section of a portion on line a: x, Fig. 1. Figs. 3 and 4 represent views of the adjusting device detached, shown partly sect1onal. Fig. 5 represents a face view of theV Fig. 6 represents a perspective view of the concave of the device for cracking the material prior to grinding. Figs. 7 and 8 represent means for connecting the runner with the shaftf Similar letters and numerals of reference indicate corresponding parts in the several figures.l

Referring to the drawings, A designates the casing of the mill, the same containing the runner B and bed B', and having a lateral extension G, which contains the cracking-burr D and concave E therefor, said runner B and burr D being secured to the shaft F, which latter is mounted on the end walls of the casing and extension, as seen in Fig. 1. The bed B is secured to the wall of the casing, the eye 1 between said bed and the runner B being in communication with the space between the burr D and concave E, said burr and concave being properly toothed. rlhe hopper 2 is supported onthe casing and extension A G and directs the coffee or other material to be ground to the concave and burr.

The shaft F is laterally movable in its bearings,whereby the runner maybe moved nearer to or farther from the bed for fine or coarse grinding, said shaft having a crank-handle wheel or pulley 3 at one end and a power or ily wheel 4t at the other end.

Loosely fitted on the shaft F, adjacent to the hub of the wheel 3, is a sleeve 5, whose side toward said hub is formed with spirals or inclines 6, at the ends of which are stops 7. The back of the sleeve rests freely against the bearing 8 on the casing or a washer 9, interposed between said sleeve and bearing.

G designates a yoke, whose pins Yor limbs 10 pass freely through the hub of the wheel 3 andvhave their inner ends adapted to rest against the inclines 6. Through the head or .cross-piece 11 of the yoke G is freely' passed a screw 12, which enters the end of the shaft F and engages therewith, whereby said yoke may be moved in and out, so as to set the limbs l0 nearer to or farther frointhe inclines 6 of the sleeve 5, so as to adjust the pressure thereon. Interposed between the bearing 13 and the power-wheel is a spring "H, whose tendency is to force the shaft in the direction toward said wheel 4.

` It will be seen that when the sleeve 5 is rotated in one direction the inclines 6 ride against the legs of the yoke G in the rise of said inclines, a'nd thus force the latter outwardly, whereby the head of the screw 12 draws the shaft F with it in this case to the right, and thus forces the runner nearer to the bed and causing proper grinding, the screw, as is evident, also providing means for adjusting the degree of iineness. Should obstacles enter between the runner and bed, the sleeve is rotated in reversed direction, whereby the legs ride on the inclines in the descent of the latter, and thus the yoke is relieved of the pressing action of theA sleeve. The spring H then exerts its pressure on the shaft in the direction at present to the left, and thus the runner is moved from the bed, whereby the obstacles are permitted to drop. The rotation of the sleeve 5 is limited by the stops 7 and the shoulders 14; at the base of the inclines. When the coee or other mate` rial enters the hopper, it is directed between the burr D and concave E, and thus cracked or reduced preparatory to the grinding operation, the cracked or reduced material reaching the runner and-bed through the eye 1. The ground material is directed through the throat 15 at the bottom of the casing into the drawer or box at thebase of the mill.

The concave E has secured to its back a screw 16, which passes through an opening in the wall of the offset 17 of the extension C,

and is tightened by a nut 18, said offset forming shoulders 19, against which the concave is fitted, whereby by means of said shoulders and the screw 1G and nut 1S the concave is firmly held in position.

The runner B is formed of the two parts 2O and 2l, the part 2O being conical in form and the part 21 cylindrical.

On the shaft F is secured a bushing` 22 by means of the screws 23, the said bushing being within the runner and burr, and secured thereto by a soft metal part, (shown black in Fig. 1,) the said bushing having a notched, grooved, or irregular surface. The shell 21, which is larger than the shell 2O and constitutes the vertical part of the runner, is also fitted over the bushing and placed against the base of the shell 20. Soft metal is now poured into the space between the bushing and the hub of the shell 21 and united with the soft metal previously introduced, whereby the two shells are firmly connected with each other and with the shaft.

In Figs. 7 and 8 there are shown means for connecting the runner with the shaft without the employment of the bushing, the part 2O being illustrated in Fig. 7 as the first step, and the two parts being illustrated in Fig. 8 as connected with each other and the shaft.

Having thus described my invention, what I claim as new, and desire to secure by Letters Iatent, is

1. In a grinding-mill, a shaft having a runner secured thereon, a casing with bed, the

shaft having bearings in said easing, a sleeve on said shaft and abutting against said easing and having inclines on one of its sides, a crosspiece with pins, the latter bearing against said inclines, and a screw Working in said cross-piece and the end of the said shaft, said parts being combined substantially as and for the purpose set forth.

2. A shaft with a runner secured thereon, a easing forming bearings for said shaft and having a bed secured thereto, a sleeve on said shaft and having inclines with shoulders and stops at the ends thereof on one of its sides, a cross-piece with pins bearing against said inclines, and a screw working in the end of the shaft and in the cross-piece, said parts being combined substantially as described.

3. In a grinding-mill, a shaft with a runner secured thereon, wheels or pulleys on the ends of said shaft, a casing forming bearings for said shaft, a coil-spring between one of the wheels and one end of the easing, a bed supported in said casing, a sleeve with inclines, having on one end of its sides a wheel having its hub against said sleeve, a cross-piece with pins bearing against said inclines, and a screw regulating said cross-piece and pin, said parts being combined substantially as and for the purpose set forth.

HENRI Il. GOLES.

W'itncsscs:

.Tenn A. WIEDEnsnEIM, A. l. JENNINGS. 

